Bath tub drain cover



FIG. 1 is a side view of the bath tub drain cover;

FIG. 2 is a top view of the bath tub drain cover;

FIG. 3 is a bottom view of the bath tub drain cover; and,

FIG. 4 is a perspective view of the bath tub drain cover in a use environment.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a bath tub drain cover, as shown and described. 